Radio base station system and relay device

Abstract

A relay device 100 transmits, when receiving the Hyper Frame (HFN) from a RE 30, the predetermined information, such as control information included in the received Hyper Frame by including the predetermined information in the frame to be transmitted from a relay device 100 to a REC 21. Specifically, the relay device 100 transmits the predetermined information by including the predetermined information in the Hyper Frame to be transmitted to the REC 21 within a predetermined time period after a time point at which the Hyper Frame is received from the RE 30. Further, the RE 30 transmits the Hyper Frame to the relay device 100 in a cycle shorter than a transmission cycle of the Hyper Frame to be set in a case where the RE 30 is directly connected to the REC 21.

1 . A base station system comprising:
 a radio equipment device configured to transmit and receive a radio signal to and from a mobile station; and   a relay device connectable to the radio equipment device and a plurality of radio equipment controllers in different radio communication systems and configured to relay predetermined information included in a frame transmitted and received between the radio equipment device and the radio equipment controller, wherein   the frame transmitted and received between the radio equipment device and the relay device and the frame transmitted and received between the relay device and the radio equipment controller operate in synchronization timings independent of each other,   the radio equipment device includes a frame transmission unit configured to transmit the frame to the relay device in a cycle shorter than a transmission cycle of the frame to be set in a case where the radio equipment device is directly connected to the radio equipment controller,   the relay device includes a relay processing unit configured to transmit, when receiving the frame from the radio equipment device, the predetermined information included in the received frame by including the predetermined information in the frame to be transmitted from the relay device to the radio equipment controller, and   the relay processing unit transmits the predetermined information by including the predetermined information in the frame to be transmitted to the radio equipment controller within a predetermined time period after a time point at which the frame is received from the radio equipment device.   
     
     
         2 . A relay device connectable to a radio equipment device configured to transmit and receive a radio signal to and from a mobile station and a plurality of radio equipment controllers in different radio communication systems configured to control the radio equipment device, the relay device configured to relay predetermined information included in a frame transmitted and received between the radio equipment device and the radio equipment controller, wherein
 the frame transmitted and received between the radio equipment device and the relay device and the frame transmitted and received between the relay device and the radio equipment controller operate in synchronization timings independent of each other,   the relay device comprises a relay processing unit configured to transmit, when receiving the frame from the radio equipment device, the predetermined information included in the received frame by including the predetermined information in the frame to be transmitted from the relay device to the radio equipment controller, and   the relay processing unit transmits the predetermined information by including the predetermined information in the frame to be transmitted to the radio equipment controller within a predetermined time period after a time point at which the frame is received from the radio equipment device.   
     
     
         3 . The relay device according to  claim 2 , wherein the relay processing unit transmits the predetermined information by including the predetermined information in the frame transmitted first after the time point at which the frame is received from the radio equipment device.